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irga5000 [103]
3 years ago
9

What are the four macromolecules of life

Biology
2 answers:
Verizon [17]3 years ago
4 0

The four Macromolecules of Life

  1. Carbohydrates
  2. Lipids
  3. Proteins
  4. Nucleic acids
otez555 [7]3 years ago
4 0

1: Proteins.

2: Carbohydrates.

3: Lipids.

4: Nucleic Acids.

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A segment of dna has 320 nitrogen bases. if 40 of them are cytosine, how many are thymine
NISA [10]
Correct answer - 120 for Thymine.

Why? - 320 Nitrogen bases.
Cytosine = 40, Cytosine = Guanine.
Therefore Guanine = 40.
320 - 80(Cytosine and Guanine)
240.
Adenine and Thymine = ?
Adenine = x and Thymine = x.
2x = 240.
X = 240/2
X = 120.
Adenine 120, Thymine = 120, Cytosine = 40 and Guanine = 40.
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3 years ago
Why do the ospring of meiosis result in greater genetic variation than the ospring of mitosis?
My name is Ann [436]

Answer:

While in mitosis, genes are generally transferred faithfully from one cellular generation to the next; in meiosis and subsequent sexual reproduction, genes get mixed up. Sexual reproduction actually expands the variety created by meiosis, because it combines the different varieties of parental genotypes.

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3 years ago
A chemical mutagen that is structurally similar to a nucleotide but has different base-pairing rules is called a ________.
OLga [1]

Answer:

Nucleoside analog

Explanation:

  • Nucleoside analogs are the mutagenic chemicals that have a structure that is similar to the normal bases of the nucleotide and thus can be incorporated in the DNA during the process of replication, however as it has different base-pairing rules than the normal nucleotide base it can lead to mutations.
  • An example of a nucleoside analog is acyclovir which an analog of guanosine. 
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